the Empire Demo. It is not listed on the Visconti website at all. It looks identical to another demo that Visconti made for Pens Plus. Actually, they only made 4 of them in addition to 90 of the green/bronze celluloid pens. Is there an emblem on the cap tassie?

The pen I have is different from the one sold by PensPlus. I got mine from Giordano Italia. The cap on the tassie is different from the one you show in your photos in that mine is slightly larger and only has the "V" and he Visconti name on it.

Here are two photos:

My pen is pen #39 and if I am not mistaken 99 pens were made in this version.